The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 2023
Filed:
Mar. 25, 2021
Seiko Epson Corporation, Tokyo, JP;
Atsushi Saito, Chino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A display device includes an image light generating device, a light-guiding member on which image light emitted from the image light generating device is incident, a first diffraction element provided at an incident side of the light-guiding member and having positive power, a second diffraction element provided at an exit side of the light-guiding member and having positive power, and a mirror provided at an end portion at the incident side of the light-guiding member and having positive power, in which the image light passed through the first diffraction element is reflected by the mirror and propagates in the light-guiding member, and the image light incident on the second diffraction element is deflected by the second diffraction element forming an exit pupil.